SSD Failures in Datacenters: What? When? and Why?

Proceedings of the 9th ACM International on Systems and Storage Conference Pub Date : 2016-06-06 DOI:10.1145/2928275.2928278

Iyswarya Narayanan, Di Wang, Myeongjae Jeon, Bikash Sharma, Laura Caulfield, A. Sivasubramaniam, Ben Cutler, Jie Liu, Badriddine M. Khessib, Kushagra Vaid

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引用次数: 124

Abstract

Despite the growing popularity of Solid State Disks (SSDs) in the datacenter, little is known about their reliability characteristics in the field. The little knowledge is mainly vendor supplied, and such information cannot really help understand how SSD failures can manifest and impact the operation of production systems, in order to take appropriate remedial measures. Besides actual failure data and the symptoms exhibited by SSDs before failing, a detailed characterization effort requires wide set of data about factors influencing SSD failures, right from provisioning factors to the operational ones. This paper presents an extensive SSD failure characterization by analyzing a wide spectrum of data from over half a million SSDs that span multiple generations spread across several datacenters which host a wide spectrum of workloads over nearly 3 years. By studying the diverse set of design, provisioning and operational factors on failures, and their symptoms, our work provides the first comprehensive analysis of the what, when and why characteristics of SSD failures in production datacenters.

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数据中心SSD故障:什么?什么时候?,为什么?

尽管固态硬盘(ssd)在数据中心越来越受欢迎，但人们对其可靠性特性知之甚少。这些小知识主要是供应商提供的，这些信息并不能真正帮助理解SSD故障是如何表现出来并影响生产系统的运行，以便采取适当的补救措施。除了实际故障数据和SSD故障前表现出的症状外，详细的特征描述工作还需要关于影响SSD故障的因素(从供应因素到操作因素)的广泛数据集。本文通过分析来自50多万个SSD的广泛数据，展示了广泛的SSD故障特征，这些SSD跨越多代，分布在几个数据中心，这些数据中心在近3年的时间里承载了广泛的工作负载。通过研究故障的各种设计、配置和操作因素及其症状，我们的工作首次全面分析了生产数据中心中SSD故障的内容、时间和原因。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Proceedings of the 9th ACM International on Systems and Storage Conference

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